50A to 100A input Closed Loop Hall Effect Current Sensor SJ 20790-2000
50A to 100A input Closed Loop Hall Effect Current Sensor SJ 20790-2000
The TBC-LAH current sensor is a closed loop device based on the principle of the hall effect and null balance method. The output from the current sensor is the balancing current which is a perfect image of the primary current reduced by the number of secondary turns at any time. This current can be expressed as a voltage by passing it through a resister. It provides accurate electronic measurement of DC,AC or pulsed currents.
| Electrical data(Ta=25℃±5℃) |
| Type Parameter | TBC50LAH | TBC100LAH | Unit |
Rated input (Ipn) | 50 | 100 | A |
Measure range(Ip) | 150 | 280 | A |
Measure resister | @ IPN(DC) | @ IPN(DC) | Ω |
@ IPN(RMS) | @ IPN(RMS) | Ω | |
Measure resister | @ IPN(DC) | @ IPN(DC) | Ω |
@ IPN(RMS) | @ IPN(RMS) | Ω | |
Rated output (Isn) | 25±0.5%FS | 50±0.5%FS | mA |
| Turns ratio(Np/Ns) | 1:2000 | T | |
Supply voltage | ±12～±15 | V | |
| 20+IpX(Np/Ns) | mA | |
| Offset current | @ Ipn=0 ≤±0.2 | mA | |
Offset current drift | @ -40～+85℃ ≤±0.5 | mA | |
Response time | @200A/μS,10%-90% ＜1 | µs | |
| Linearity | @Ip=0-±Ipn ≤0.1 | %FS | |
Galvanic isolation | @ 50,AC,1min 5.0 | KV | |
di/dt accurately followed | ＞200 | A/μs | |
Bandwidth | @ -3dB DC…200 | KHZ | |
| Secondary coil resister | @ +70℃ 75 | @ +70℃ 50 | Ω |
| Applications |
Variable speed drives
Welding machine
Battery supplied applications
Uninterruptible Power Supplies (UPS)
Electrochemical
Switched Mode Power Supplies (SMPS)
| Mechanical dimension(for reference only) |
Remarks:
1. All dimensions are in mm.
2. General tolerance ±1mm
| Pin connections |
| Turns | Rated input | Measure | Rated output current | Secondary turns | Primary | Primary |
| 1 | 50(100) | 150(280) | 25(50) | 2000 | 0.08 | 0.007 |
| Directions for use |
When the current will be measured goes through a sensor ,the voltage will be measured at the output end.
(Note: The false wiring may result in the damage of the sensor).
Custom design in the different rated input current and the output voltage available.
| Standards |
- UL94-V0.
- EN60947-1:2004
- IEC60950-1:2001 Test Voltage: 1000V
- EN50178:1998 Test Voltage: 1000V
- SJ 20790-2000
| General date |
| Value | Unit | Symbol | |
| Operating temperature | -40 to +85 | ºC | TA |
| Storage temperature | -40 to +125 | ºC | TS |
| Mass(approx) | 15 | g | M |
| Characteristics chart |
Pulse current signal response characteristic Effects of impulse noise
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